Hi - You won't need much land for chickens, ducks, rabbits and 2 pigs if you have some good outbuildings. Our chickens have a shed within a large barn with the pig stye at the end of it. Rabbits have their run half in and half out of another barn so that the young have good shelter but adults can run about a bit outside. We have about an acre for veg and various stock pens and a garden across the lane for pumpkins and root feed for the pigs. My neighbour has a very old tractor and her son ploughs us some long rows in
their "garden" for spuds and carrots and swede ( pig food).

I have to dig over all the veg plots on our land though. I can cut wood from 3 different sites that I share with a neighbour who collects it with a tractor and trailer. Today I was cutting trees a good 1.5 km away so it would have been nice not to walk and carry the chainsaw,oil,fuel and a long axe across fields.
Others can tell you how much grazing land you need for other stock. Our pigs have plenty of land to root about but we do go collecting walnuts,chestnuts and apples with a wheelburrow - so a serious ammount of picking stuff off the floor !!